The Velvet Rope

DJ AM was among about 300 mourners who attended the memorial service Monday of one of the victims of the Sept. 20 Learjet crash that killed four people; AM and Travis Barker were injured in the crash.

Chris "Lil' Chris" Baker was Barker's good friend and assistant, according to people.com. Barker, who was released from the hospital Monday, was unable to attend.

Paris Hilton, who is a friend of Barker and DJ AM, told Ryan Seacrest on his radio show Tuesday that the Learjet crash has given her second thoughts about how she travels.

"[I've flown] in that type of plane, but now I will never go in one again," she said, according to "Access Hollywood." "You never know what can happen."

Trouble in paradise?

There may be unrest in the Playboy Mansion.

Hugh Hefner told usmagazine.com last week that his relationship with his No. 1 girl, Holly Madison, is "in transition." On Saturday, another of the "Girls Next Door," Kendra Wilkinson, admitted that "there are a lot of changes going on," according to Us. "There's a lot of rumors about me moving on, Holly moving on... it's really sad."